Bucksaw-frame.



No. 642,593. Patented Feb. 6, I900. L. E. EICKELBERG.

B UCKSAW FRAME.

(Application filed May 12, 1899.) (No Model.)

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LOUIS E. EIOKELBI IRG, OF VATERLOO, IOWA.

BUCKSAW-FRAM E.

SPECIFICATION forming part of Letters Patent No. 642,593, dated February 6, 1900.

Application filed May 12, 1899. Serial No. 716,531. (No model.)

To all whom it may concern: 1

Be it known that I, LoUIs E. EICKELBERG, a citizen of the United States of America, and a resident of Waterloo, Black Hawk county, Iowa, have invented certain new and useful Improvements in Bucksaw-Frames, of which the following is a specification.

This invention relates to woodworkingtools, and more especially to that class thereof known as saw-handles; and the object of the same is to produce an improved bucksaw frame or handle and means for tightening it.

To this end the invention consists in a construction whereby the blade is strained or stretched by the simultaneous action of two forces, one of which is capable of adjustment, all as hereinafter more fully described and claimed, and as shown in the accompanying drawings, wherein- Figure l is a side elevation of my improved frame with its adjustment more clearly shown enlarged in Fig. 2.

The frame comprises a handle 0, preferably of wood, and the beam A, having one end n forked and provided with a series of holes for adjustable connection to the handle, and its other end turned down, as shown, and bolted to one extremity of the plate B, whereof the other extremity is connected with the handle, and the center of the beam, which latter is preferably of tubular metal, is depressed out of a true straight line, as at m. With these elements is combined a series of rods connecting the upper end of the handle with the downward bend of the beam, and the length of this rod may be adjusted as described below. The rod holds the beam practically always at one angle to the handle except when adjustment occurs, and the tension on this rod turns said handle over the pivotal point a, so as to draw the blade B.

to straighten out will tighten the blade to a considerable extent. The rod is made in two members d e and f g, which are preferably flattened where they lap each other, and the inner edge of one member notched, as shown, and using a tie-bar h it, having holes h near its ends, which embrace the lapping ends of the members. One of the latter has a head at its inner end, as seen in Fig. 2, and when the tie-bar is in place and tension is applied it cants on the member cl e, so that the hole h presses against the head, while the hole 7t engages the back of the other rod f g and enters one of the notches in its front edge. The outer ends of the rods, as at d and g, are engaged, respectively, with the beam A, where it bends downward, and with the upper end of the handle 0. After inserting the blade B and adjusting at n, as necessary, the rods or members are drawn toward each other forcibly and connected by any form of adj ustment that is employed.

All parts are preferably of metal, excepting the handle, which is preferably of wood. The latter is sprung to a certain extent around its pivotal point a, and hence the yielding force of the wooden handle assists the specific construction of the beam A in straining the blade B tight between its extremities.

What is claimed as new is- 1. A bucksaw-frame comprising a substantially upright handle,a beam connected at one end to about the center of the handle and having its other end turned down for attachment to the blade, a rod in two members whose outer ends are respectively connected with the upper end of the handle and with the beam where it is turned down, and a tiebar having holes receiving the inner lapping ends of said rods and adapted to bind thereon when the tie-bar is canted, as and for the purpose set forth.

2. A bucksaw-frame comprising a substantially upright handle, a beam connected at one end to about the center of the handle and having its other end turned down for attachment to the blade, a rod .in two, members whose outer ends are respectively connected with the upper end of the handle and with the beam where it is turned down and whose inner ends are respectively provided with a Signed byme at Waterloo, Iowa, this 9th day of May, 1899.

LOUIS E. EIOKELBERG.

Witnesses:

J. D. LIFFRING, M. E. KENNEDY. 

